The Underwater Cairn

Located in the Sea of Galilee and found by sonar imaging, is this tall structure of stones. There’s no extensive image of the actual cairn, but it’s a pyramid of rocks that’s roughly 165 feet across.

Scientists aren’t sure of the date of construction, but given that large schools of Tilapia swim around it, they’ve theorized that it’s an ancient fishery, or some sort of tribute to the deities of fishing.